Hermawan, Candra. 2021. “Exploring Obstacles and Solutions in the Implementation of Problem-Based Learning in Online Education: Eksplorasi Hambatan Dan Solusi Dalam Penerapan Problem-Based Learning Pada Pembelajaran Daring”. Santhet (Jurnal Sejarah Pendidikan Dan Humaniora) 5 (1), 79-90. https://doi.org/10.36526/santhet.v5i1.4607.